Air-line oiler



Dec, 23, 1924.

H. v. HAIGHT AIR um: 01mm Filed-Feb. e, 1924 INVENTOR I Patented Dec. 23,1924; 1

UNITED STATES.

PATENT o c HARRY v. nAIGHT, ,orsnnnnnooxn, QUEBEC, CANADA, AssIGNon-"ro iNGEnsoLL- RAND COMPANY, OI J CITY, NEW J A. CORPORATION OF NEW JERSEY.

Mann-011m.

' A plications February 6', 1924. s rialjn ieeoesa To all whom it may, concern: Be it known that I, HARRY V. HAIGHT, a

. citizen of the Dominion 'of Can'ada, and a resident of-Sherbrooke, Province of Quebec, 1 Canada, have invented a certain Air-Line Oiler, of which the following is a specification accompanied by drawings.

This invention relates ,to hat. type 16f ,1u-' bricato'rs for machines which are operated by compressed airor other elastic fluids,,but

moreparticularly to an air linezoi ler, which is 'adaptedjto be connected to an air l ne, f0r" conveying lubricant in m nut'e partlclesto a machine, such as a fluid factuatedtrock drill, for lubricating .the .,work1ng parts thereof."

' Rock drills, pneumatic tools' iand other" elastic fluid operated machinesfmust ireceive constant. lubricatlon 1n order; to :ob-.

tain the best results. The amount of-lubri cant must be regulated in such a manner thatbarely suflicient lubricant is supplied v erator who-often times "to the machine to enableevery.partto'ep-- erate efficiently, yet prevent the admlsslon.

The presentinvention is designed to overcontemplates the use of an automatic oiler connectedto the air line, which 1s adapted v to convey. the compressed elastic fluidto the machine, so that as the fluidpasses through the air line it will be impregnatedv with. lubricant and thereby enable every working part. of the machine tov receive adequate lubrication.

' Another object of the jinvention is to en able the amount of lubricant supplied to the air line to be regulated so that a greater or I less quantity of lubricant can .be surgiliedp to the machine or the supply shut o tirely A further ob ect of the invention, .is to produce an'alr'line oiler which is simple in its construction, is composed-0f but few parts, is sturdy and rug ed'and' is adapted to withstand the hardest ind of'usage only the rear end portion of 'a'rock drill is ratchet ring hereafter appear and 'the inventionis shown in one of its, preferred forms in the ac'com- P Y ng drawings," in which- Flgure 1, is a side elevation, partly -,in- I Vertical section of a portionof a rock drill and an air line oiler associated therewith; I

Figure'2 is an enlarged elevation, partly F g ra i Figure 3 is a transverse sectiontakenon the line 3-3of Figure 2"looking in the direction of the arrows, and

tov

iii-vertical section,'of theoiler'.shown in I Figure'isa longitudinal section-taken on the line of Figure '2 looking in the direction of the arrows.

Referring to "the drawings, A designates. an air linethrouglr-which elastic pressure fluid, such'as 'compressedair, is adapted to .passto. anysuitable source, and as shown. in Figure-1, the air line A'may-communicate -with a rock drill B, and a suitable throttle ;,-valv'e C is preferably, connected to the air line A for controlling the supply of pres-.- sure fluid to the-rock drill. In this instance shown for purposes-ofillustration, and-the rock drill comprises a' cylinder D in which a piston E, having a forward fluted shank F,-is adapted to reciprocate,- jand the distribution of pressure fluid to the piston E is controlled by a suitable distributing valve A spiral fluted rifle bar H extends into the piston E, arid-is provided with an enlarged head J: car ing theusual pawlsK come the above mentioned diflicultles, andfwhich are adapts to cooperate with a L'. as the piston E reciprocatesin the cylinder D, the rifle ba-r. H will i permit the piston .toIrotate in but'one direction," and the pistonfE rotates-the usual chuck into which. the drillsteel extends.

Although arock drill is shownin the draw ings for. illustrative-purposes, it is to be .un-

- derstood that -the .presentinvention is ape plicable to' any form of a machine which, is 1 pling member R, which: is' ini'this instance.

formed with internal screw threads for the Further obJects of the invention W111 reception of the. screw threaded end porformed integrally. if desired."v The head P i ispreferably formedlwith an integral co'utions of the pipe line ,The reservoir O, however, may be connected to the pipe line end of these passages is closed by suitablef plugs W, and the passage U extends through part of the head P and is adapted to communicate with the upper portion of the res-. ervoir O. I The passage 'V in this instance extends through a part of the head P and communicates. with a: tube X which is preferably formed with radial ports In or- ,der to'hold the tube. X in position, ascrew threaded plug Z is screwed into the head P :and is adapted to bear against one end of the tube X, and a cap a is screwed onto the outward-lyextending end of'the plug Z for, locking the-plug in .place and preventinginjury thereto. A washer b may be inserted between the cap a and the head P, if dei the sired.

The central wall T is in this instanceformed with aport c, which communicates with the passage U and is positioned in path of the pressure fluid flowing through the pipe line A, so that pressure fluid fromthe pipe line will flow through sure on thelubricant created by the pres the passage U and into the reservoir- 0 thereby creating a pressure on top of the lubricant. 'Aport d is also formed in the wall T and communicates with the passage V,but faces in theport 0. I

As the pressure fluid passes through the pipe line A, a suction will be created in the passage V and lubricant will be'drawn outof the reservoir 0 through the ports Y, tube X, passage V and port 0?. The presthe opposite direction from sure' fluid] from the air line A passing through the port a and passage U. will force. the lubricant around the tube X and assistin the'withdrawaluof lubricant from the reservoir 0. The head P is preferably formed with filling openings closed by suit able plugs e for supplying lubricant tothe reservoir 0.

In order to'regulate the amount of 'lubri-. cant drawn from the reservoirO, a suitable controlling valve 7". in this instance in the. form of a tapered plug, is preferably mounted in the head P, and is provided with an actuating handle 9. The ,valve f is in this instance formed with a right angle port it which is adapted to bring the passage -U into communication with the upper part of the reservoir 0, and a port y' which is adapted to be brought into communication handle 9 for holding the tapered valve 7.

with the passage 1V. A coil is preferably located in a recess .0 in the head P and in this instance bears against the to its seat.

A stop 77 is preferably formed on the outer face of the head P for limiting the move mentof the handle 9 inone direction and a frictional slide-way g is formed on the head P adjacent the stop p and the word On is in this instance stamped on the slide-'way g so that the operator will know.

in what position the' handle g must be in order that, lubricant will be drawn from the reservoir 0..

This airline oiler has been found to 0perate satisfactorily and efficiently, and to convey .sufiicient lubricant to fluid actuated machines toobtain smooth running. shown in Figure l lubricant from the reser- 3 voir 0 will pass with the pressure fluid into the rock drill B and lubricate the working parts, and the operator does not have to trouble himself with the lubricating of his machine. V W

Iclaim:

1. An air line oiler comprising in combinationwith an air 'line,a lubricant reservoir, a head for closing one end of said reservo1r and a. member extending from said head into said air line, said member being formed witha passage ada ted to permit a portion. of the pressure" uid from said air line to pass into the upper portionv of said reservoir and a second passage adapted to communicate with a lower portion of said reservoir through which lubricant is adapted'tobedrawn. t. 2. An air line' oiler comprising in combination with an air line, a lubricant reservoir, a head for closing one end of said reser-.

voir, a member extending from-said head into said air line, said'member. being formed with a passage adapted to permit a portion of the pressure fluid from said air line to pass into the upper portion of said reservoir and 'a second passage adapted to communicate with a lower portion of said reservoir through which lubricant is adapted to be drawn, and a manually operable valve for controlling said passages.

3. An' air line oiler comprising in combination with an air line, a lubricant reser .voir, means for closing one end of the said reservoir, ahead closingthe opposite end of-said reservoir, a coupling member c011- nected to said head and also connected to said. air. line, a central wall in said coupling member, said'wallbeing formed with oppositely facedports, one of said 'portsfacin 0 towards the flow of' pressure fluid in said air line and the opposite port facing away from theflow of-pressure fluid in the air hue and passagescommumcating respectively with said ports, one of said passages adapted to permit a portion of pressure fluid from said air line to pass into the upper portion 'of saidreservoir, and a tube communicating with said other p'assage for enabling lubricant to be drawn into said passage from the lower portion of said reservoir.

4. An airline oiler eoinprisingin combination-With an air line, a lubricant rescr voir, means for closing oneend of the said reservoir, a head closing the opposite end ofsaid i-eservoir,'a coupling mcmberconnected to said head and also connected to said air line, a central Wall in said coupling member,-said Wall being formed'with oppositely faced ports, one of-s'aid ports facing towyards the flow-of pressure fluid in said air llne and the opposite port. facing away fromthe flow of pressurev fluid in the air line and passages communicating respectively with said ports, one of said passages adapted to permit a portion of pressure fluid from'said .air line to pass into the upperportion of said reservoir, a tube communicating 'with a HARR v. HAIGHT. 

